In this episode, we're joined by Johnny Grusing, a former FBI agent with 25 years of experience, including time in the Behavioral Analysis Unit. He shares his story of investigating a serial killer, Scott Kimball, and the case that's detailed in his book, The Devil I Knew. Johnny takes us through the twists and turns of the investigation, from meeting Kimball as an informant to uncovering a web of disappearances and potential victims. With a unique perspective on the case, Johnny opens up about the challenges of dealing with a clever and manipulative suspect.